Gastric bleeding leading to bloating and shortness of breath need to consider the problem of the disease itself, and secondly, consider the excessive bleeding caused by low blood pressure, shock and other conditions. 1. The cause of the disease itself: there are many diseases that can cause gastric bleeding, such as acute gastritis, peptic ulcer, cerebrovascular disease and so on. For example, acute gastritis can also have stomach pain, vomiting and other symptoms; for example, peptic ulcer can have rhythmic and periodic stomach pain symptoms; for example, cerebrovascular disease can also have nausea, vomiting, headache, dizziness and other symptoms. 2. Excessive bleeding: excessive bleeding can lead to decreased blood volume and hypotension. This will lead to stomach distension, shortness of breath, fatigue and other symptoms, and in severe cases, hemorrhagic shock can occur. Manifested as dry mouth, lips cyanosis, panic, chest tightness and even fainting and other symptoms, continued aggravation can lead to sudden death. For gastric hemorrhage caused by gastric distension and shortness of breath, it is recommended to consult a doctor to clarify the current condition, in order to deal with it as soon as possible to avoid adverse consequences.